spread out widely
The perfume began to diffuse throughout the entire room.
Vocabulary like diffuse appears on the Digital SAT in Words-in-Context questions, where you choose the word that fits a passage's meaning and tone. You can also drill this word with vocabulary flashcards.
scheming; indirect in departing from the accepted or proper way; misleading
plan; come up with an idea, plan, explanation, theory, or principle after mental effort
dedicate; give entirely to a specific person, activity, or cause
identification; identifying the nature or cause of some phenomenon
division; being twofold; a classification into two opposed parts or subclasses
instructional; instructive (especially excessively)
distinguish; mark as different
shyness; lack of self-confidence